Texas Occupations Code - OCC § 1202.1535. Effect of Building Code Amendment

(a) An industrialized building that bears an approved decal or insignia indicating that the building complies with the mandatory building codes and that has not been modified or altered is considered to be in compliance with a new mandatory building code adopted by the council or an amendment to a code approved by the council under Section 1202.152 or 1202.153.

(b) The owner of an industrialized building designed to be transported from one commercial site to another that bears an approved decal or insignia indicating the building complies with the mandatory building codes and that is modified or altered after the date the council adopts a new mandatory building code or the council approves a building code amendment must ensure that the modified or altered building complies with the requirements and standards of the new building code or amendment to the extent required by the most recent edition of the International Existing Building Code adopted by the council.